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Red Planet Day (Mars)

It always falls on 28 November each year.

It is an unofficial holiday that commemorates November 28, 1964 when NASA and the Jet Propulsion Laboratory (JPL) launched the Mariner 4 robotic interplanetary spacecraft. Within a few years, Mariner 4 continued to transmit data to Earth. The communications ended on December 21, 1967. The total data returned from the mission was 5.2 million bits. The total cost of the mission was about $ 83.2 million.

Mariner 4 became the first spacecraft to successfully pass through Mars. She gave the first detailed images of Mars. Since then, several reconnaissance missions have been sent to Mars to collect data about the planet.

Planet Mars refers to them as the red planet. Like Earth. Venus, Mercury is also a Mars rock planet.

Mars is the 4th planet from the Sun and the second smallest planet in the Solar System. It is named after the Roman god of war from the Greek word Ares. Mars is called the Red (Red) Planet because of the iron oxide that dominates the surface, giving it a reddish tinge. The periods of rotation, inclination and seasonal cycles are similar to those on Earth. Mars has 2 months Phobos and Deimos and are irregular in shape and small. Mars has the largest solar volcano Olympus Mons in height is 21 km and a diameter of 600 km in the solar system. It also has the largest canyon in the Solar System Valles Marineris, which is 4,000 km long and 200 km wide and nearly 7 km deep. Mars has 38% of our planet's gravity and lasts 687 Earth days.

The US Space Agency estimates that people can be sent to Mars within 20 years.

In 2005, radar data revealed the presence of large amounts of ice at mid latitudes and at the poles.

There are currently 5 functioning spacecraft on Mars. Three are in orbit (Mars Odyssey, Mars Express and Mars Reconnaissance Orbiter) and 2 on the surface. All of them send a lot of data about Mars on Earth. In 2011, Mars Curiosityrover first found meteorite and complex molecules and seasonal fluctuations in the atmosphere's methane concentration.

Mars can be seen from Earth with the naked eye. Mars also has fog and frost.

You can use the hashtag #RedPlanetDay or social media.